feat: app list is displayed and updated

applets/cosmic-app-list/src/config.rs

@@ -1,12 +1,15 @@
-use crate::ID;
 use anyhow::anyhow;
 use serde::Deserialize;
 use std::fmt::Debug;
 use std::fs::File;
 use xdg::BaseDirectories;
 
-#[derive(Debug, Clone, Deserialize)]
+pub const APP_ID: &str = "com.system76.CosmicAppList";
+pub const VERSION: &str = "0.1.0";
+
+#[derive(Debug, Clone, Deserialize, Default)]
 pub enum TopLevelFilter {
+    #[default]
     ActiveWorkspace,
     ConfiguredOutput,
 }
@@ -14,6 +17,7 @@ pub enum TopLevelFilter {
 #[derive(Debug, Clone, Default, Deserialize)]
 pub struct AppListConfig {
     pub filter_top_levels: Option<TopLevelFilter>,
+    pub favorites: Vec<String>,
 }
 
 impl AppListConfig {
@@ -21,7 +25,7 @@ impl AppListConfig {
     pub fn load() -> anyhow::Result<AppListConfig> {
         let file = match BaseDirectories::new()
             .ok()
-            .and_then(|dirs| dirs.find_config_file(format!("{ID}/config.ron")))
+            .and_then(|dirs| dirs.find_config_file(format!("{APP_ID}/config.ron")))
             .and_then(|p| File::open(p).ok())
         {
             Some(path) => path,
@@ -33,4 +37,20 @@ impl AppListConfig {
         ron::de::from_reader::<_, AppListConfig>(file)
             .map_err(|err| anyhow!("Failed to parse config file: {}", err))
     }
+
+    pub fn add_favorite(&mut self, id: String) -> anyhow::Result<()> {
+        if !self.favorites.contains(&id) {
+            self.favorites.push(id);
+        }
+        todo!()
+    }
+
+    pub fn remove_favorite(&mut self, id: String) -> anyhow::Result<()> {
+        self.favorites.retain(|e| e != &id);
+        todo!()
+    }
+
+    pub fn save() -> anyhow::Result<()> {
+        todo!()
+    }
 }